BE592605A
(en )
1961-01-04
Improvements in the manufacture of catalysts
BE580998A
(en )
1960-01-25
Improvements in the manufacture of belts
BE595689A
(en )
1961-02-01
Improvements in shoe manufacturing
BE588547A
(en )
1960-09-12
Improvement in the manufacture of valve bags.
FR1247491A
(en )
1960-12-02
Improvements in the manufacture of transformers
BE594858A
(en )
1961-03-08
Improvements in the manufacture of zippers.
BE598704A
(en )
1961-06-30
Improvements in the manufacture of urea
FR75546E
(en )
1961-07-07
Improvements in the manufacture of construction panels
BE585426A
(en )
1960-04-01
Improvements in the manufacture of foam.
FR1229790A
(en )
1960-09-09
Improvements in the manufacture of capacitors
BE584877A
(en )
1960-03-16
Improvements in the manufacture of studs.
FR1173735A
(en )
1959-03-02
Improvements in the manufacture of pentaerythritis
FR1256826A
(en )
1961-03-24
Improvements in the manufacture of junction transistors
FR1248075A
(en )
1960-12-09
Improvements in the manufacture of transistors
FR1234274A
(en )
1960-10-17
Improvement in the manufacture of aldehydesulfoxylates
FR1224832A
(en )
1960-06-27
Improvements in the manufacture of gelatin
FR1210245A
(en )
1960-03-07
Improvements in the manufacture of slide closures
BE596614A
(en )
1961-05-02
Improvements in the making of beer.
FR1231411A
(en )
1960-09-29
Improvements in the manufacture of transistors
BE574375A
(en )
1959-04-16
Improvements in the manufacture of dentures.
FR1232044A
(en )
1960-10-05
Improvements in the manufacture of transformers
FR1246813A
(en )
1960-11-25
Improvements in the manufacture of semiconductor elements
FR1228897A
(en )
1960-09-02
Improvement in the manufacture of paddles
FR1285430A
(en )
1962-02-23
Improvements in the manufacture of springs
FR1204952A
(en )
1960-01-29
Improvements in the manufacture of para-amino-diphenylamine